Horizon Robotics — Proxy Solicitation & Information Statement 2026

May 19, 2026

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Horizon Robotics

(A company controlled through weighted voting rights and incorporated in the Cayman Islands with limited liability)

(Stock code: 9660)

FORM OF PROXY FOR USE AT THE ANNUAL GENERAL MEETING TO BE HELD ON WEDNESDAY, JUNE 10, 2026 OR ANY ADJOURNMENT THEREOF

I/We, (Note 2) of being the registered holder(s) of shares (Note 1) in the issued share capital of Horizon Roboti MEETING (Note 3) or		Number of shares to which this form of proxy relates (Note 1)	Class A Shares Class B Shares (name) (address) POINT THE CHAIRMAN OF THE (name)
		cs (the “Company”), HEREBY AP

of email address as my/our proxy to attend the annual general meeting (and any adjourned meeting) of the Company (the “ Annual General Meeting ”) to be held by way of a virtual meeting through an e-Meeting System on Wednesday, June 10, 2026 at 2:00 p.m. for the purposes of considering and, if thought fit, passing the resolutions as set out in the notice convening the said meeting and at such meeting (and at any adjournment thereof) to vote for me/us and in my/our name(s) in respect of the resolutions as indicated below.

	ORDINARY RESOLUTIONS# F	ORDINARY RESOLUTIONS# F	ORDINARY RESOLUTIONS# F
	1. To receive and adopt the audited consolidated financial statements of the Company and the reports of the directors of the Company (the “Director(s)”) and the auditor of the Company for the year ended December 31, 2025.
	2. To re-elect Dr. Jian Xu as an executive Director.
	3. To re-elect Dr. Liming Chen as an executive Director.
	4. To re-elect Mr. Liang Li as a non-executive Director.
	5. To re-elect Mr. Qin Liu as a non-executive Director.
	6. To re-elect Mr. Jianjun Zhang as a non-executive Director.
	7. To re-elect Dr. Ya-Qin Zhang as an independent non-executive Director.
	8. To authorize the board of Directors (the “Board”) to fix the respective Directors’ remuneration.
	9. To re-appoint PricewaterhouseCoopers as auditor of the Company and to authorize the Board to fix its remuneration for the year ending December 31, 2026.
	10. To grant a general mandate to the Board to repurchase the Company’s shares not exceeding 10% of the total number of issued shares (excluding any treasury shares) as at the date of passing this resolution (the “Share Repurchase Mandate”).
	11. To grant a general mandate to the Board to (i) allot, issue and deal with new class B ordinary shares and (ii) sell or transfer treasury shares not exceeding 20% of the total number of issued shares of the Company (excluding any treasury shares) as at the date of passing this resolution (the “Share Issue and Resale Mandate”).
	12. Conditional upon the passing of resolutions nos. 10 and 11, to extend the Share Issue and Resale Mandate granted to the Board to allot, issue and deal with additional class B ordinary shares in the capital of the Company by the total number of shares repurchased by the Company under the Share Repurchase Mandate.
	# T Dated this	he full text of the resoluti day of	ons is set out in the notice of the Annual General Meeting. 2026 Signature (Note 6):

Notes:

1. Please state the number of relevant class(es) of shares of the Company registered in your name(s) in the box on the top right hand corner. If no number is inserted, this form of proxy will be deemed to relate to all the shares of the Company registered in your name(s). If more than one proxy is appointed, the number and class of shares in respect of which each such proxy so appointed must be specified.

2. Full name(s) and address(es) to be inserted in BLOCK CAPITALS .

3. If any proxy other than the Chairman is preferred, strike out the words “ THE CHAIRMAN OF THE MEETING ” here inserted and insert the name, address and email address (for receiving the designated log-in username and password to attend and vote on your behalf via the e-Meeting System) of the proxy desired in the space provided. IF NO NAME IS INSERTED, THE CHAIRMAN OF THE MEETING WILL ACT AS YOUR PROXY. Any member of the Company entitled to attend and vote at the meeting is entitled to appoint another person as his/her/its proxy to attend and vote instead of him/her/it. The proxy need not be a member of the Company but must attend the meeting via the e-Meeting System to represent the member. ANY ALTERATION MADE TO THIS FORM OF PROXY MUST BE INITIALED BY THE PERSON WHO SIGNS IT.

4. IMPORTANT: IF YOU WISH TO VOTE FOR ANY RESOLUTIONS, TICK THE APPROPRIATE BOXES UNDERNEATH THE COLUMN MARKED “FOR”. IF YOU WISH TO VOTE AGAINST ANY RESOLUTIONS, TICK THE APPROPRIATE BOXES UNDERNEATH THE COLUMN MARKED “AGAINST”. Failure to complete any or all the boxes will entitle your proxy to cast his/her votes at his/her discretion. Your proxy will also be entitled to vote at his/her discretion on any resolution properly put to the meeting other than those referred to in the notice convening the meeting.

5. All resolutions will be put to vote by way of poll at the meeting. A person entitled to more than one vote on a poll need not use all his/her votes or cast all the votes he/she uses in the same way and in such cases, please state the relevant number of shares in the appropriate box(es) above.

6. This form of proxy must be signed by you or your attorney duly authorized in writing or, in the case of a corporation, must be either executed under its common seal or under the hand of an officer or attorney or other person duly authorized.

7. To be valid, this form of proxy together with the power of attorney or other authority, if any, under which it is signed, must be deposited at the Company’s Hong Kong branch share registrar, Tricor Investor Services Limited, at 17/F, Far East Finance Centre, 16 Harcourt Road, Hong Kong not less than 48 hours before the time appointed for holding the meeting (i.e. not later than 2:00 p.m. on Monday, June 8, 2026) or the adjourned meeting thereof.

8. In the case of joint holders of any Share(s), only ONE PAIR of log-in username and password will be provided to the joint holders. Any one of such joint holders may attend or vote at the meeting via the e-Meeting System in respect of such Share(s) as if he/she/it was solely entitled thereto.

9. Completion and delivery of the form of proxy will not preclude you from attending and voting via the e-Meeting System at the meeting and, in such event, the form of proxy shall be deemed to be revoked.

10. References to time and dates in this form of proxy are to Hong Kong time and dates.

PERSONAL INFORMATION COLLECTION STATEMENT

Your supply of your and your proxy’s (or proxies’) name(s) and address(es) is on a voluntary basis for the purpose of processing your request for the appointment of a proxy (or proxies) and your voting instructions for the Annual General Meeting of the Company (the “ Purposes ”). We may transfer your and your proxy’s (or proxies’) name(s) and address(es) to our agent, contractor, or third party service provider who provides administrative, computer and other services to us and to such parties who are authorized by law to request the information or are otherwise relevant for the Purposes and need to receive the information. Your and your proxy’s (or proxies’) name(s) and address(es) will be retained for such period as may be necessary to fulfil the Purposes. You/your proxy (or proxies) has/have the right to request access to and/or correction of the relevant personal data in accordance with the provisions of the Personal Data (Privacy) Ordinance and any such request should be in writing by mail to Tricor Investor Services Limited at 17/F, Far East Finance Centre, 16 Harcourt Road, Hong Kong.